Long-tailed Blue Butterfly / Pea Blue Lampides boeticus

Long-tailed Blue butterfly
Long-tailed Blue
The Long-tailed Blue butterfly can be distinguished from Lang's Short-tailed Blue by the broad white streak near the border of the underside wings.
Long-tailed Blue butterfly
Long-tailed Blue
faded Long-tailed Blue
The Long-tailed Blues above left/centre still have their long tails and "eye-spots" but the faded one above right has lost its long tail (to a bird or to wear and tear). The tails and eyespots serve as fake antennae and eyes to deceive predators and let the butterfly escape.
Long-tailed Blue butterfly
Long-tailed Blue
faded Long-tailed Blue
The butterfly is native to (warm) parts of Eurasia and parts of Africa and Australasia.